Calling someone for free via Facebook is now possible through Talkatone, an app for iPad, iPod Touch and iPhone. While Facebook calls can be made through other apps, they use cellular minutes. Talkatone, on the other hand, uses VoIP through Wifi and 3G. The app also offers free push notifications for Facebook Chat.

Using the app appears simple. You just need to download the Talkatone app and sign in using Facebook Connect. You may then call your friends but they must also have the app on their device. One thing that could be irritating though is that the app will post this message on your friends wall if you initiate a call. “I am calling you on Facebook from Talkatone. You can get it on your iPhone, iPod touch or iPad, and call me back for free.”